io_uring: avoid req->ctx reload in io_req_put_rsrc_nodes()

axboe · axboe · commit f41b07549235 · 2026-03-17T14:35:00.000-06:00
Cache 'ctx' to avoid it needing to get potentially reloaded.

Signed-off-by: Jens Axboe &lt;axboe@kernel.dk&gt;
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
@@ -1073,12 +1073,14 @@ void io_queue_next(struct io_kiocb *req)
 
 static inline void io_req_put_rsrc_nodes(struct io_kiocb *req)
 {
+	struct io_ring_ctx *ctx = req->ctx;
+
 	if (req->file_node) {
-		io_put_rsrc_node(req->ctx, req->file_node);
+		io_put_rsrc_node(ctx, req->file_node);
 		req->file_node = NULL;
 	}
 	if (req->flags & REQ_F_BUF_NODE)
-		io_put_rsrc_node(req->ctx, req->buf_node);
+		io_put_rsrc_node(ctx, req->buf_node);
 }
 
 static void io_free_batch_list(struct io_ring_ctx *ctx,

Original file line number	Diff line number	Diff line change
`@@ -1073,12 +1073,14 @@ void io_queue_next(struct io_kiocb *req)`
`1073`	`1073`
`1074`	`1074`	`static inline void io_req_put_rsrc_nodes(struct io_kiocb *req)`
`1075`	`1075`	`{`
	`1076`	`+ struct io_ring_ctx *ctx = req->ctx;`
	`1077`	`+`
`1076`	`1078`	`if (req->file_node) {`
`1077`		`- io_put_rsrc_node(req->ctx, req->file_node);`
	`1079`	`+ io_put_rsrc_node(ctx, req->file_node);`
`1078`	`1080`	`req->file_node = NULL;`
`1079`	`1081`	`}`
`1080`	`1082`	`if (req->flags & REQ_F_BUF_NODE)`
`1081`		`- io_put_rsrc_node(req->ctx, req->buf_node);`
	`1083`	`+ io_put_rsrc_node(ctx, req->buf_node);`
`1082`	`1084`	`}`
`1083`	`1085`
`1084`	`1086`	`static void io_free_batch_list(struct io_ring_ctx *ctx,`